Nails do not require trimming prior to grinding. Do not hold the grinder in one place while it is in use, as it may cause unevenness and damage the nail. Use a continuous side-to-side motion. Hold the Dremel like a pencil, and firmly hold the foot while grinding the nail. Do not apply force, the Dremel will do the work for you. To replace the grooming bands on the drum, loosen the screw on the top of the drum a couple of turns. Do not remove, just loosen. Replace the old band with the new band and tighten the screw back up again.

Review: I've had my dremel for 3 years and I love it. It holds a charge all day at work. Has two speeds. The fast speed is a bit loud. I amgoing to buy a second one just to have in case something happens.